 In particular, it is believed that Buddhism from Korea and Shintō from Japan were first introduced to Okinawa to a significant extent at this time.Students and other travelers to Korea brought back texts, statues, rituals, and other Buddhist objects and ideas, and in exchange, King Bunei promised to send shipwrecked Koreans, and those who were the victims of Japanese pirates ("wakō"), back home safely.Domestically, Bunei's reign saw significant development in the organization and formalization of the royal administration, and increased literacy and education among the administrative officials.